Name

skb_cow_head — skb_cow but only making the head writable

Synopsis

int skb_cow_head (struct sk_buff *  skb,
 unsigned int  headroom);

Arguments

skb

buffer to cow

headroom

needed headroom

Description

This function is identical to skb_cow except that we replace the skb_cloned check by skb_header_cloned. It should be used when you only need to push on some header and do not need to modify the data.